The remote AlmaLinux 10 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:8492 advisory.

    * libarchive: libarchive: Information disclosure via heap out-of-bounds read in RAR archive processing     (CVE-2026-4424)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:8534 advisory.

    The libarchive programming library can create and read several different streaming archive formats,     including GNU tar, cpio, and ISO 9660 CD-ROM images. Libarchive is used notably in the bsdtar utility,     scripting language bindings such as python-libarchive, and several popular desktop file managers.

    Security Fix(es):

    * libarchive: libarchive: Information disclosure via heap out-of-bounds read in RAR archive processing     (CVE-2026-4424)

    * libarchive: libarchive: Arbitrary code execution via integer overflow in ISO9660 image processing     (CVE-2026-5121)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2490-1 advisory.

    This update for libarchive fixes the following issues

    - CVE-2025-60753: bsdtar hangs and OOMs with zero-length pattern matches (bsc#1253088).
    - CVE-2026-4111: logical deadlock the RAR5 filter subsystem and the half-window output limiter leads to     infinite loop       and DoS (bsc#1259635).
    - CVE-2026-4424: information disclosure via heap out-of-bounds read in RAR archive processing     (bsc#1259928).
    - CVE-2026-4426: undefined behavior due to unvalidated operand in shift expression of the zisofs     decompression code       (bsc#1259931).
    - CVE-2026-5121: arbitrary code execution via integer overflow in ISO9660 image processing (bsc#1261186).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:8510 advisory.

    * libarchive: libarchive: Information disclosure via heap out-of-bounds read in RAR archive processing     (CVE-2026-4424)
      * libarchive: libarchive: Arbitrary code execution via integer overflow in ISO9660 image processing     (CVE-2026-5121)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4563 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4563-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                     Arnaud Rebillout     May 05, 2026                                  https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : libarchive     Version        : 3.4.3-2+deb11u4     CVE ID         : CVE-2026-4111 CVE-2026-4424 CVE-2026-4426 CVE-2026-5121     Debian Bug     : 1130753 1131444 1131446 1133002

    Multiple vulnerabilities have been discovered in libarchive, a     multi-format archive and compression C library, which also provides the     following command-line tools: bsdcat, bsdcpio, bsdtar and bsdunzip.

    CVE-2026-4111

        A flaw was identified in the RAR5 archive decompression logic of the         libarchive library, specifically within the archive_read_data()         processing path. When a specially crafted RAR5 archive is processed,         the decompression routine may enter a state where internal logic         prevents forward progress.  This condition results in an infinite loop         that continuously consumes CPU resources. Because the archive passes         checksum validation and appears structurally valid, affected         applications cannot detect the issue before processing. This can allow         attackers to cause persistent denial-of-service conditions in services         that automatically process archives.

    CVE-2026-4424

        A flaw was found in libarchive. This heap out-of-bounds read         vulnerability exists in the RAR archive processing logic due to         improper validation of the LZSS sliding window size after transitions         between compression methods. A remote attacker can exploit this by         providing a specially crafted RAR archive, leading to the disclosure         of sensitive heap memory information without requiring authentication         or user interaction.

    CVE-2026-4426

        A flaw was found in libarchive. An Undefined Behavior vulnerability         exists in the zisofs decompression logic, caused by improper         validation of a field (`pz_log2_bs`) read from ISO9660 Rock Ridge         extensions. A remote attacker can exploit this by supplying a         specially crafted ISO file. This can lead to incorrect memory         allocation and potential application crashes, resulting in a         denial-of-service (DoS) condition.

    CVE-2026-5121

        A flaw was found in libarchive. On 32-bit systems, an integer overflow         vulnerability exists in the zisofs block pointer allocation logic. A         remote attacker can exploit this by providing a specially crafted         ISO9660 image, which can lead to a heap buffer overflow. This could         potentially allow for arbitrary code execution on the affected system.

    For Debian 11 bullseye, these problems have been fixed in version     3.4.3-2+deb11u4.

    We recommend that you upgrade your libarchive packages.

    For the detailed security status of libarchive please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/libarchive

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of AHV installed on the remote host is prior to 11.0.1.2 / AHV-11.0.1.2. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AHV-11.0.1.2 advisory.

  - Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, an unchecked vsnprintf return in     SStream_concat lets a malicious cs_opt_mem.vsnprintf drive SStream's index negative or past the end,     leading to a stack buffer underflow/overflow when the next write occurs. Commit     2c7797182a1618be12017d7d41e0b6581d5d529e fixes the issue. (CVE-2025-68114)

  - The webbrowser.open() API would accept leading dashes in the URL which could be handled as command line     options for certain web browsers. New behavior rejects leading dashes. Users are recommended to sanitize     URLs prior to passing to webbrowser.open(). (CVE-2026-4519)

  - A flaw was found in GnuTLS. This vulnerability allows a denial of service (DoS) by excessive CPU (Central     Processing Unit) and memory consumption via specially crafted malicious certificates containing a large     number of name constraints and subject alternative names (SANs). (CVE-2025-14831)

  - nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.68.1,     the nghttp2 library stops reading the incoming data when user facing public API     `nghttp2_session_terminate_session` or `nghttp2_session_terminate_session2` is called by the application.
    They might be called internally by the library when it detects the situation that is subject to connection     error. Due to the missing internal state validation, the library keeps reading the rest of the data after     one of those APIs is called. Then receiving a malformed frame that causes FRAME_SIZE_ERROR causes     assertion failure. nghttp2 v1.68.1 adds missing state validation to avoid assertion failure. No known     workarounds are available. (CVE-2026-27135)

  - A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive     processing logic due to improper validation of the LZSS sliding window size after transitions between     compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive,     leading to the disclosure of sensitive heap memory information without requiring authentication or user     interaction. (CVE-2026-4424)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Apple iOS running on the mobile device is prior to 26.6. It is, therefore, affected by multiple vulnerabilities.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
309076	AlmaLinux 10 : libarchive (ALSA-2026:8492)	Nessus	Alma Linux Local Security Checks	2026/4/21	2026/4/21	high
306785	RHEL 8 : libarchive (RHSA-2026:8534)	Nessus	Red Hat Local Security Checks	2026/4/16	2026/4/16	critical
322920	SUSE SLED15 / SLES15 Security Update : libarchive (SUSE-SU-2026:2490-1)	Nessus	SuSE Local Security Checks	2026/6/26	2026/6/26	critical
307375	AlmaLinux 9 : libarchive (ALSA-2026:8510)	Nessus	Alma Linux Local Security Checks	2026/4/17	2026/7/27	critical
312112	Debian dla-4563 : libarchive-dev - security update	Nessus	Debian Local Security Checks	2026/5/5	2026/7/27	critical
319295	Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-11.0.1.2)	Nessus	Misc.	2026/6/6	2026/7/27	high
330150	Apple iOS < 26.6 Multiple Vulnerabilities (128066)	Nessus	Mobile Devices	2026/7/27	2026/7/31	critical

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